/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is What's That Preference?.
 *
 * The Initial Developer of the Original Code is
 * George Bradt.
 * Portions created by the Initial Developer are Copyright (C) 2011
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

var WhatsThatPref = {

    newTabBrowser: "",
    prefName: "",
    prettyPrinted: "",

	// When our "MozillaZine Reference" menuitem is clicked.

    mozillaZineReference: function(aPrefName) {
        this.openUrlInNewTab("http://kb.mozillazine.org/" + aPrefName);
    },

	// When our "MozillaZine Group Reference" menuitem is clicked.

    mozillaZineGroupReference: function(aPrefName) {
        let group = aPrefName.split(".")[0] + ".";
        let groupCapitalized = group.charAt(0).toUpperCase() + group.slice(1);
        this.openUrlInNewTab("http://kb.mozillazine.org/About:config_entries#" + groupCapitalized);
    },

	// When our "Web Search" menuitem is clicked.

    webSearch: function(aPrefName) {
        this.openUrlInNewTab('http://www.google.com/search?q="' + aPrefName + '"');
    },

	// When JSON pretty-print menuitem is clicked.

    jsonPrettyPrint: function(aPref) {
        // This module from the extension JSONovich.
        Components.utils.import("resource://whatsthatpref/whatsthatpref-json2html.js", this);
        let jsonData;
        this.prettyPrinted = "";
        this.prefName = aPref.prefCol;

        // Specific to my Simple X extensions, pref can contain multiple strings.
		let stringArray = aPref.valueCol.split("\x1D");

        for ( let i in stringArray ) {
            try {
                jsonData = JSON.parse(stringArray[i]);
                this.prettyPrinted += this.JSON2HTML.formatJSON(jsonData);
            }
            catch(e) {
                this.debug("What's That Pref: Preference value is not valid JSON!");
                this.prettyPrinted += this.JSON2HTML.encodeHTML(stringArray[i]);
            }
        }

        // Load an HTML skeleton, creating this.newTabBrowser.
        this.openUrlInNewTab("chrome://whatsthatpref/content/whatsthatpref.html");
        this.newTabBrowser.addEventListener("load", function () { WhatsThatPref.newTabLoadedEvent(); }, true);
    },

	// Fired when new tab is loaded, add in our content.

	newTabLoadedEvent: function() {
        this.newTabBrowser.contentDocument.title = this.prefName;
        this.newTabBrowser.contentDocument.body.innerHTML = this.prettyPrinted;
        this.newTabBrowser.removeEventListener("load", function () { WhatsThatPref.newTabLoadedEvent(); }, true);
	},

	// Global variable gBrowser is only accessible from the scope of the browser window (browser.xul).

	getBrowser: function() {
		let wm = Components.classes["@mozilla.org/appshell/window-mediator;1"].
                getService(Components.interfaces.nsIWindowMediator);
        let win = wm.getMostRecentWindow("navigator:browser");
        return win.gBrowser;
	},

	// Open URL in new tab.

	openUrlInNewTab: function(aUrl) {
        let tabbedBrowser = this.getBrowser();
        let newTab = tabbedBrowser.addTab(aUrl);
        tabbedBrowser.selectedTab = newTab;
        this.newTabBrowser = tabbedBrowser.getBrowserForTab(newTab);
    },

	// Debug messages to console.

	debug: function(aMsg) {
		window.setTimeout(function() { throw new Error("[debug] " + aMsg); }, 0);
	}
};